Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 86
d to the boss of N,so that whilst N and the drill spindle have the same rotary motion,the latter can slide vertically in the boss of the former. A sectionof the drill spindle is shown in Fig. 82, from which it will beseen that the upper part of the drill spindle is reduced in diameterand fits into… … Fio. 81. to the frame, fitting in a longitudinal groove in the screw, so that 76 MECHANISM. the screwed part moves up and down witliout rotating; and thespindle is prevented, from rising bodily by the split collar V, whichis screwed to the frame. The tool is attached to the drill spindle atQ, and…
Machinery, Kinematics of
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